Do not make it confusing
KISS method Keep It Simple.
Dipole is a balanced antenna, coax is an unbalanced transmission line.
Thus the need for a BALUN BAL ( balanced, your antenna ) UN (unbalanced coax).
UGLY BALUN or RF CHOKE does not do anything from a current distribution aspect, the ugly balun or RF choke just in theory chokes or prevents the RF from the shield of the coax thus eliminating the coax from radiating IE CMC common mode current.
A good 1:1 current balun provides a center point for your dipole legs, an easy connection for coax to transition to the antenna and a stable point to suspend the antenna.
If you decide on 160 meters you will need an specific current balun for 160 meters, if not most current baluns are good for 3 to 30 mhz frequency coverage.
Many knowledgeable members have posted on this thread, their advice is good and sound.
Build your antenna however you like and see how it works for you, try the rf choke, then try the current balun, be prepared to re-tune the antenna every time you change from the rf choke to the current balun.
Or just get a good 1:1 current balun, and build it, install it, and call it done.
